Calcium ions are well-known intracellular signalling molecules. A new study identifies local cytoplasmic calcium as a central integrator of metabolic and proliferative signals in Drosophila intestinal stem cells.

Fifty years ago pharmacological discoveries transformed psychiatry but progress since then has been relatively slow and there is unease about the role of industry. Despite this, the possibilities of pharmacological treatment have improved in recent years but exploiting developments for the benefit of patients requires psychotherapeutic skill as well as a high level of scientific knowledge.

The American focus on the sexual purpose of breasts, rather than the physiological function of breasts, has serious public health consequences. Discomfort with breastfeeding in public lowers breastfeeding rates, which in turn negatively affects women's and children's short- and long-term health.

The glutamic oxalacetic transaminase (GOT) activities of five transplanted malignant liver tumors were compared, as well as that of mammary adenocarcinoma 6338, the Walker carcinosarcoma ~56, and the livers and sera of the host rats. Bile and urine were analyzed in some additional experiments with Hepatoma 51~3. The GOT activity of Hepatoma 51~3, unlike that of the Dunning, the Novikoff, the Mo...